ELECTROSTATIC SEPARATION OF SULFIDES FROM QUARTZ - A POTENTIAL METHOD FOR MINERAL BENEFICIATION

被引：3

作者：

INCULET, DR ^{[1
]}

QUIGLEY, RM ^{[1
]}

INCULET, II ^{[1
]}

机构：

[1] UNIV WESTERN ONTARIO,FAC ENGN SCI,APPL ELECTROSTAT RES CTR,LONDON,ON N6A 5B9,CANADA

来源：

JOURNAL OF ELECTROSTATICS | 1995年 / 34卷 / 01期

关键词：

Beneficiation - Electric conductivity of solids - Electric current measurement - Electrostatic separators - Pyrites - Quartz - Sulfur compounds;

D O I：

10.1016/0304-3886(94)00028-U

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Artificial mixtures of galena, pyrite and sphalerite with quartz in a particulate size range of 106-150 mu m (140-100 mesh) were subjected to electrostatic beneficiation in an alternating current force field in an inverted roof separator. Pyrite and galena, with electrical conductivities of similar to 1000 and similar to 100 (Omega m)(-1) respectively, separated efficiently from the quartz which has a very low conductivity of only similar to 10(-12) (Omega m)(-1). This enabled recovery of 70% of the pyrite in only 15% of the processed mass and 40% of the galena in 11% of the processed mass. Sphalerite, with a relatively low conductivity of similar to 10(-5) (Omega m)(-1) was not sufficiently different from quartz to permit any beneficiation. Electrostatic separation of selected sulphides from silicate gangue minerals appear to be a technically feasible and environmentally friendly possibility.

引用

页码：17 / 25

页数：9

共 4 条

[1]

Inculet, Electrostatic Mineral Separation — Research Studies Press, pp. 23-41, (1984)

[2]

Inculet, Murata, Castle, A new electrostatic separator and sizer for small particles, IEEE Transactions on Industry Applications, 19 IA, 3, pp. 318-323, (1983)

[3]

Inculet, Castle, Quigley, Hodgson, Electrostatic beneficiation of gold ores, IEEE Trans. Ind. Appl., 24, 3, pp. 380-386, (1988)

[4]

Heiland, Geophysical Exploration, pp. 657-659, (1940)

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